Here's my code, the problem is that it doesn't add the sprite when i call it from my main function in main.
package{
import flash.display.*;
import flash.events.*;
public class gfxs extends MovieClip{
public function gfxs(){
}
public function placeCar(){
var car:MoonCar = new MoonCar();
car.x = 100;
car.y = 372;
addChild(car);
trace("PLACED CAR"); //JUST TO CHEK IF IT RUNS THIS CODE(IT DOES)
}
}
}
You need to add gfxs to the stage in your main class. For example in you main.as you might have something like this :
var myGfxs:gfxs = new gfxs();
myGfxs.placeCar();
addChild(myGfxs);
Hard to give a definitive answer as we canot see what you have done in your main.as file.
Related
I'm gonna try explaining my situation with images, to make sure that everyone will understand what i want to succeed.
First of all i have 3 files:
GenImage.fla which is linked to class GeneralImage.as
and it only contains the following picture (I tried to make the image Movie Clip but again it's not working):
Pic1
and a file named ScrollUI.as which contains the class ScrollUI.
What i want to succeed is from my GeneralImage class to create a ScrollUi item, pass the stage, and there create a ScrollPane which makes the picture look like this:
Pic2
The center part of the second image is the ScrollPane Component, which i need to make it Scrollable through the whole image. I managed to get it in my screen but i can't put the Stage in it and make it scrollable.
These are my codes :
GeneralImage.as
package {
import flash.display.*;
import flash.events.*;
import flash.display.Stage;
import ScrollUI;
public class GeneralImage extends MovieClip
{
public function GeneralImage()
{
var k = new ScrollUI();
k.ScrollConstructor(this);
}
}
}
ScrollUI.as
package
{
import flash.display.*;
import flash.events.*;
import fl.containers.ScrollPane;
import fl.events.ScrollEvent;
import fl.controls.ScrollPolicy;
public class ScrollUI extends MovieClip
{
private var _mainStage:Stage;
var aBox:MovieClip = new MovieClip();
var aSp:ScrollPane = new ScrollPane();
public function ScrollUI()
{
}
function ScrollConstructor(stage:Object):void
{
_mainStage = (stage as MovieClip).stage;
aBox == stage as MovieClip;
aSp.source == aBox ;
_mainStage.addChild(aBox);
aSp.setSize(300,300);
aSp.move(150, 75);
aSp.scrollDrag = true;
aSp.horizontalScrollPolicy=ScrollPolicy.OFF;
_mainStage.addChild(aSp);
}
}
}
So what i want it to set the Source of the Scroll Pane ( which is named aSp ) to be the _mainStage which is the stage i get from GeneralImage
Your issues is likely these two lines:
aBox == stage as MovieClip;
aSp.source == aBox ;
You're doing a comparison by using two ==, which effectively does nothing in your case. Use a single = to assign a value.
This is how I would suggest you approach this:
In the FlashPro library, find your image asset (I'm going to assume you have it wrapped in a MovieClip), right-click (or command click) and go to it's properties. Check the "export for actionscript" box, and give it a meaningful class name (for my example, I'll assume you called it MyImage)
Then you could do the following:
ScrollUI Class
package
{
import flash.display.Sprite;
import fl.containers.ScrollPane;
import fl.events.ScrollEvent;
import fl.controls.ScrollPolicy;
public class ScrollUI extends Sprite
{
//just declare the variables here, don't assign them new values
private var aBox:MovieClip;
private var aSp:ScrollPane;
public function ScrollUI()
{
//use the actual constructor...
aSp = new ScrollPane(); //instantiate a new scroll pane
addChild(aSp); //add the scroll pane to the display
aBox = new MyImage(); //instantiate an new MyImage from the library
//set the scroll pane properties
aSp.source = aBox; //you had two = signs here before, which doesn't actually assign anything it compares
aSp.setSize(300,300);
aSp.move(150, 75);
aSp.scrollDrag = true;
aSp.horizontalScrollPolicy=ScrollPolicy.OFF;
}
}
}
Document Class
package {
import ScrollUI;
public class GeneralImage extends MovieClip
{
public function GeneralImage()
{
var k:ScrollUI = new ScrollUI(); //create a new instance of the ScrollUI class
addChild(k); //add the scrollUI object to the display;
//OR, you just do this:
//addChild(new ScrollUI());
}
}
}
You could also just set the .source property of the scroll pane to the physical path of your image.
I found the solution, Thanks Batman for his help, I changes some things into my code and the program is working.
First of all as Batman said , In my GenImage.fla i made the logo a MovieClip and i named it "wholemap"
Here are my codes :
GeneralImage.as
package {
import flash.display.*;
import flash.events.*;
import flash.display.Stage;
import ScrollUI;
public class GeneralImage extends MovieClip
{
//as Batman indicated, I should have used the ScrollUI constructor, but
//except for the Stage, i also send the wholemap that is in my GenImage.fla
//<< this.getChildByName("wholemap") as MovieClip) >>
public function GeneralImage()
{
var k = new ScrollUI(this, this.getChildByName("wholemap") as MovieClip);
}
}
}
ScrollUI.as
package
{
import flash.display.*;
import flash.events.*;
import fl.containers.ScrollPane;
import fl.events.ScrollEvent;
import fl.controls.ScrollPolicy;
public class ScrollUI extends MovieClip
{
private var _mainStage:Stage;
var aBox:MovieClip = new MovieClip();
//So our constructor gets 2 items, a Stage, and a MovieClip
public function ScrollUI(stage:Object, pic:MovieClip)
{
//We set the Stage at the variable _mainStage with that way:
_mainStage = (stage as MovieClip).stage;
//We set the Image that we will take at our clip variable :
var clip:MovieClip = pic;
//And we send the Movieclip (clip) in our ScrollConstructor function
ScrollConstructor(clip);
}
function ScrollConstructor(Clip:MovieClip):void
{
var aSp:ScrollPane = new ScrollPane();
aBox = Clip;
_mainStage.addChild(aBox);
aSp.source = aBox ;
aSp.setSize(300,300);
aSp.move(150, 75);
aSp.scrollDrag = true;
aSp.horizontalScrollPolicy=ScrollPolicy.OFF;
aSp.verticalScrollPolicy=ScrollPolicy.OFF;
_mainStage.addChild(aSp);
}
}
}
Thank you very much for your assistance, I hope if someone else come across with this problem to be able to solve it with this Answer
I'm playing around with flash, and I've created multiple scenes for things like menu's, buttons, etc. When trying to add event handlers for buttons that are in one scene, but not others, the compiler complains saying that it can't reference to objects that don't exist.
I figured the solution to be simple... Get the scene name, match that against an if statement and load the event handlers through the if statements...
However, after digging around on the net for far too long, I just can't seem to find a way to do this properly. Does anyone know a way?
I've tried using the following :
var scene:Scene = myflvandclassname.currentScene;
var sName:String = MovieClip.currentScene.name;
Both lead to an error "Access of possibly undefined property Scene through a reference with static type Class".
Omit MovieClip and scenes as source for organising your project, and code on the timeline. Use Document class as entry point. This tutorial should help you to grasp main concept.
package {
import flash.display.Sprite;
import flash.display.StageAlign;
import flash.display.StageScaleMode;
import flash.events.Event;
public class StackOverflow extends Sprite {
public function StackOverflow() {
addEventListener(Event.ADDED_TO_STAGE, onAdded);
}
private function onAdded(e:Event):void {
removeEventListener(Event.ADDED_TO_STAGE, onAdded);
stage.align = StageAlign.TOP_LEFT;
stage.scaleMode = StageScaleMode.NO_SCALE;
setup();
}
private function setup():void {
const padding:int = 20;
//Initiate your UI components and place them in the display list
var menu:MyMenu = new MyMenu();
var buttons:MyFooterButtons = new MyFooterButtons();
var etc:AnotherComponent = new AnotherComponent();
addChild(menu);
addChild(buttons);
addChild(etc);
menu.x = menu.y = padding;
//Place them and initialise with concrete information
}
}
}
For example, MyMenu, MyFooterButtons, AnotherComponent could be MovieClip/Sprite in the library with export settings, where you did all your work with placement, styling, etc
I had a same problem. I wanted to check from an external Class the current scene name and depending on the name (name of the game level) to pass some values in some attributes… So what I did and it worked is that.
//main in 1st frame of the fla
stop();
var myCheckSceneClass: CheckSceneClass = new CheckSceneClass();
myCheckSceneClass.myCurrentScene = currentScene;
myCheckSceneClass.checkScene();
//CheckSceneClass
package {
import flash.events.MouseEvent;
import flash.display.MovieClip;
import flash.display.Scene;
public class CheckSceneClass extends flash.display.MovieClip {
public var myCurrentScene : Scene;
public function CheckSceneClass () {
}
public function checkScene() {
switch (myCurrentScene.name) {
case "Scene 1":
trace("It is the 1st Scene");
break;
default:
trace("Error with Scene Name");
break;
}
}
}
}
Trying to addChild() inside a movie clip in the stage from one of my classes. The code looks like this
package {
import flash.display.SimpleButton;
import flash.events.MouseEvent;
import flash.display.MovieClip;
public class createFlask extends SimpleButton {
public function createFlask() {
addEventListener(MouseEvent.CLICK, createAFlask);
}
private function createAFlask(e:MouseEvent):void
{
var Flask = new flask ;
Flask.x = stage.width/2;
Flask.y = stage.height/2;
stage.experiment.addChild(Flask);
}
}
This gives an error as
Access of possibly undefined property experiment through a reference
with static type flash.display:Stage.
Any solutions?
Just omit "stage".
Instead use
experiment.addChild(Flask);
That will work.
I recently discovered the custom classes in actionscript 3. I started using them in my latest project but I find it hard to bend my brain around how it all works.
I created two different classes to test.
One is an extended movieclip called "Persoon" and the other is an extended simplebutton called "SpeakerBtn".
package {
import flash.display.Sprite;
public class Persoon extends Sprite {
public function Persoon(xPos:Number, yPos:Number, naam:String) {
var persoon:Sprite = new Sprite;
persoon.graphics.beginFill(0x000000,1);
persoon.graphics.drawCircle(xPos, yPos, 2);
persoon.graphics.endFill();
this.addChild(persoon);
trace ("hij heet " + naam);
}
}
}
package {
import flash.display.SimpleButton;
import flash.events.MouseEvent;
import flash.media.Sound;
import flash.media.SoundChannel;
public class SpeakerBtn extends SimpleButton {
public var snd:Sound;
public var cnl:SoundChannel = new SoundChannel();
public function SpeakerBtn(xp:Number,yp:Number,naam:String) {
var speaker:SimpleButton = new SimpleButton();
speaker.name = naam;
speaker.x = xp;
speaker.y = yp;
speaker.addEventListener(MouseEvent.CLICK, playSnd);
//this.addChild(speaker);
}
public function playSnd (event:MouseEvent) : void {
trace ("ping");
}
}
}
Then I have my main:
package {
import flash.display.MovieClip;
import SpeakerBtn;
import flash.display.SimpleButton;
import Persoon;
public class Main extends MovieClip {
var sp:SpeakerBtn;
var ps:Persoon;
public function Main() {
sp = new SpeakerBtn(50,50,"donna");
addChild(sp);
ps = new Persoon(300,300,"wilf");
addChild(ps);
}
}
}
Persoon wilf works like I expected, displays fine and traces correctly.
SpeakerBtn donna does not display and does not trace correctly. I commented out the addChild in the SpeakerBtn package because if I turn it on, I get the error 1061: Call to a possibly undefined method addChild through a reference with static type SpeakerBtn
I noticed that when I define the x and the y and addChild in Main for the speakerBtn it does work. But I don't want to have to define all that in Main, I want my SpeakerBtn to do all that.
I checked this question but it does not provide me with an answer. Can someone explain to me what is happening, or alternatively link me to a comprehensible tutorial (one not too heavy on techspeak, more like an explain-it-to-me-like-I'm-5-years-old)? Thanks!
Update
I forgot to add a button with the class SpeakerBtn to my library, so there was nothing to display. Fixed that now, and with this code the button does appear on the stage, only the x and y values are not registered and it appears on 0,0. Also, the event playSnd does not trigger the trace and I assume is not working.
Solution
With help of Cherniv's information I came to the following solution for my SpeakerBtn.
Main does this:
package {
import flash.display.MovieClip;
import SpeakerBtn;
import flash.display.SimpleButton;
public class Main extends MovieClip {
var sp:SpeakerBtn;
public function Main() {
sp = new SpeakerBtn("donna", 300, 50);
addChild(sp);
}
}
}
And SpeakerBtn does this:
package {
import flash.display.SimpleButton;
import flash.events.MouseEvent;
import flash.media.Sound;
import flash.media.SoundChannel;
import flash.display.Sprite;
import flash.events.Event;
import flash.net.URLRequest;
public class SpeakerBtn extends SimpleButton {
private var snd:Sound;
private var cnl:SoundChannel = new SoundChannel();
private var _naam:String;
private var _x:Number;
private var _y:Number;
public function SpeakerBtn(naam:String, xp:Number, yp:Number) {
_naam = naam;
_x = xp;
_y = yp;
addEventListener(Event.ADDED_TO_STAGE, addBtn);
}
private function addBtn (event:Event) : void {
this.x = _x;
this.y = _y;
this.name = _naam;
snd = new Sound(new URLRequest("mp3/" + _naam + ".mp3"));
addEventListener(MouseEvent.CLICK, playSnd);
}
private function playSnd (event:MouseEvent) : void {
cnl = snd.play();
}
}
}
So what I did was add an EventListener for when the button was added to the stage and then set all the variables like x-position, y-position and name.
That's because of inheritance. Your SpeakerBtn doesn't inherits the addChild method from his ancestors , because as we can see in SimpleButton's documentation it is inheritor of DisplayObject and not of DisplayObjectContainer , which do have a addChild method and passes it to all his inheritors including MovieClip and Persoon.
I have very simple class, but it doesn't work? What could be wrong with this?
package {
import flash.display.Sprite;
import fl.controls.Button;
public class t_class extends Sprite {
private var b:Button;
public function t_class():void{
b = new Button();
b.width = 150;
b.label = "button label";
b.move(10, 150);
b.enabled = false;
addChild(b);
}
}
}
Assuming that you are adding an instance of your button class as a child to the stage as others have mentioned above:
package
{
//Imports
import flash.display.Sprite;
import com.wherever.is.t_class;
//Class
public class DocumentClass extends Sprite
{
//Constructor
public function DocumentClass()
{
var myButton:t_class = new t_class();
addChild(myButton);
}
}
}
The good news is that your t_class code is correct (minus a few deviations from AS3 code conventions, but i digress). However, in order to use Flash Components they must be physically imported into the library in addition to being imported with code. If they are not present in the library then Flash doesn't know they exist and you will receive the following during compile:
"ERROR 1046: Type was not found or was not a compile-time constant: Button."
Goto Window > Components, select User Interface > Button and drag the component into your library. Rebuild and you should see your button.